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nata0808 [166]
3 years ago
14

20% of Desiree's math test problems consisted of word problems. 30% of Everett's math test problems consisted of word problems.

Which statement must be true?

Mathematics
2 answers:
Art [367]3 years ago
8 0

Answer:

last answer : Everett 10 problem and Desirre 15 problem

Step-by-step explanation:

Everett's 10 problem: 10 * 30% = 3 word problem

Desirre's 15 problem: 15 * 20% = 3 word problem

Nat2105 [25]3 years ago
8 0

Answer:B

Step-by-step explanation:20 percent is greater than 30 percent.

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Solve the equation by completing the square. Round to the nearest hundredth if necessary. x2 + 2x = 17
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Equation Given
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x² + 2x = 17

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Add the constant to make it perfect square
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x² + 2x + (2/2)² - ²(2/2)² = 17

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Evaluate the brackets
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x² + 2x + (1)² - ²(1)² = 17

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Form the perfect square
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(x + 1)² - 1 = 17

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Add 1 to both sides
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(x + 1)² = 17 + 1
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Square root both sides
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√(x + 1)² = \pm√18

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Solve for x
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x = 4.24 - 1 or - 4.24 -1

x = 3.24 or - 5.24 (nearest hundredth)

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Answer: x = x = 3.24 or - 5.24
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